Home / 1,225,505.52-1,691,173.36-681,629.60

Finding the Fourth Proportional to 1,225,505.52, 1,691,173.36 and 681,629.60

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Solution

The fourth proportional to 1,225,505.52, 1,691,173.36 and 681,629.60 is: 940,635.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,505.52 : 1,691,173.36 = 681,629.60 : x
  2. Step 2: Convert to fraction form
    1,225,505.52/1,691,173.36 = 681,629.60/x
  3. Step 3: Cross multiply
    1,225,505.52x = 1,691,173.36 × 681,629.60
  4. Step 4: Simplify right side
    1,225,505.52x = 1,152,753,820,907.46
  5. Step 5: Solve for x
    x = 1,152,753,820,907.46/1,225,505.52
  6. Step 6: Final answer
    x = 940,635.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.